Soon, every mouse gene will be disabled (or disable-able). Scientists will engineer all sorts of mice missing all sorts of genes. And we’ll be able to use those mutant mice to study the genetics of ...

Sam the library mouse is content reading and writing about far-off places and events. When he meets Sarah, a daring mouse from the other side of the stacks, Sam is happy to pass on his book knowledge.

Biologists working with 'knockout' mice that have been genetically engineered to inactivate certain genes are creating a library of knockouts of all microRNAs (miRNA) known in mice. The collection, an ...